Rectangular channel flow reactors are a useful basis for the development of electrochemical synthesis as part of a green and sustainable chemica manufacturing involving process electrification. A laboratory-scale electro chemical

reactor, developed as channel flow cell, had length (L) of 30 cm, a cross-sectional width (B) of3.0 cm and a cross-sectional height (s) of 5.0 mm, and was designed so that the flow would be well-developed before it reached the electrodes embedded in the sides of the reactor. Operation of the cell occurred isothermally at293 K, for a liquid electrolyte (of viscosity 1.002 mPa s and density998.2 kg m) for the electro chemical conversion of a reactant. The diffusion coefficient of the reactant in the liquid electrolyte is 2.67 x 10° cm? s'a rectangularat293 K.